n8n Workflow: Create Character-Consistent Images with Flux Kontext & Post to Social Media

This n8n workflow automates the process of generating character-consistent images using an external service (likely Flux Kontext or a similar AI art generator) and then posting these images to a social media platform via an upload post mechanism. It's designed to handle a queue of image generation requests, ensuring each image is processed and posted.

What it does

This workflow simplifies and automates the following steps:

1. Triggers on Demand: The workflow can be manually triggered or initiated by another workflow, allowing for flexible integration into larger automation systems.
2. Sets Image Generation Parameters: It prepares the necessary data for the image generation request, including character context and other parameters.
3. Generates Image via External API: It makes an HTTP request to an external service (e.g., Flux Kontext) to generate an image based on the provided parameters.
4. Waits for Image Generation: It introduces a delay to allow the external image generation service to complete its task.
5. Retrieves and Processes Image: After the wait, it likely retrieves the generated image data and extracts relevant information.
6. Conditional Processing: It includes a conditional check, potentially to verify the success of the image generation or to route based on specific image attributes.
7. Posts to Social Media: If the conditions are met, it prepares the image and associated data for a social media upload post.
8. Merges Data: It combines data from different branches of the workflow for a unified output.

Prerequisites/Requirements

To use this workflow, you will need:

• n8n Instance: A running n8n instance to import and execute the workflow.
• External Image Generation Service: Access to an API for an AI image generation service (e.g., Flux Kontext, Midjourney, DALL-E, etc.). This will require an API key or similar authentication.
• Social Media Platform API/Upload Endpoint: Access to a social media platform's API or a specific upload endpoint that supports posting images (e.g., Twitter, Instagram, Facebook, etc.). This will require appropriate credentials.
• GitHub Credential (Optional): While a GitHub node is present, its specific role isn't clear from the connections. It might be used for logging, fetching additional data, or triggering related processes. If used, a GitHub credential will be required.

Setup/Usage

1. Import the Workflow: Download the provided JSON and import it into your n8n instance.
2. Configure Credentials:
   • Set up credentials for your External Image Generation Service in the "HTTP Request" node.
   • Set up credentials for your Social Media Platform in the relevant "HTTP Request" node for posting.
   • If the "GitHub" node is active, configure your GitHub credentials.
3. Customize Nodes:
   • Edit Fields (Set): Adjust the fields in the "Edit Fields" node to define the character context, prompt, or any other parameters required by your image generation service.
   • HTTP Request (Image Generation): Update the URL, headers, and body of this node to match the API documentation of your chosen image generation service.
   • Wait: Adjust the duration of the "Wait" node based on the typical processing time of your image generation service.
   • If: Customize the conditions in the "If" node to handle success/failure scenarios or specific image characteristics.
   • HTTP Request (Social Media Post): Configure this node with the correct social media API endpoint, authentication, and payload structure for an image upload post.
4. Activate the Workflow: Once configured, activate the workflow. You can then trigger it manually using the "Manual Trigger" node or integrate it as a sub-workflow into another n8n workflow using the "Execute Workflow Trigger" node.